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* dm: pci: Convert bios_emu to use the driver model PCI APISimon Glass2016-01-24-1/+18
| | | | | | | | At present this BIOS emulator uses a bus/device/function number. Change it to use a device if CONFIG_DM_PCI is enabled. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* dm: x86: pci: Adjust bios_run_on_x86() to use the DM PCI APISimon Glass2016-01-12-1/+1
| | | | | | | | This function should take a struct udevice rather than pci_dev_t. Update it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* bios_emulator: Add vesa support and allow ROMs to be passed in as dataSimon Glass2014-11-25-0/+8
| | | | | | | | | As well as locating the ROM on the PCI bus, allow the ROM to be supplied to the emulator. Split the init up a little so that callers can supply their own interrupt routines. Also allow a vesa mode to be provided, to be selected once the BIOS run is complete. Signed-off-by: Simon Glass <sjg@chromium.org>
* pci: Add general support for execution of video ROMsSimon Glass2014-11-25-0/+15
| | | | | | | | | | | | | | | | | | Some platforms don't have native code for dealing with their video hardware. In some cases they use a binary blob to set it up and perform required actions like setting the video mode. This approach is a hangover from the old PC days where a ROM was provided and executed during startup. Even now, these ROMs are supplied as a way to set up video. It avoids the code for every video chip needing to be provided in the boot loader. But it makes the video much less flexible - e.g. it is not possible to do anything else while the video init is happening (including waiting hundreds of milliseconds for display panels to start up). In any case, to deal with this sad state of affairs, provide an API for execution of x86 video ROMs, either natively or through emulation. Signed-off-by: Simon Glass <sjg@chromium.org>
* Introduce a header file for the BIOS emulatorSimon Glass2014-11-25-0/+43
We should have a public header so that users can avoid defining functions themselves. Signed-off-by: Simon Glass <sjg@chromium.org>